terial has been
used in the corrals of Pescado, located within the village. The stone
walls are used in combination with stakes, such as are employed at the
main pueblo.

[Illustration: Plate LXIX. Pescado, plan.]

Small inclosed gardens, like those of Zuni, occur at several points in
Tusayan. The thin walls are made of dry masonry, quite as rude in
character as those inclosing the Zuni gardens. The smaller clusters are
usually located in the midst of large areas of broken stone that has
fallen from the mesa above. In the foreground of Pl. XXII may be seen a
number of examples of such work. Pl. XCI illustrates a group of corrals
at Oraibi whose walls are laid up without the use of mud mortar.

Where exceptionally large blocks of stone are available they have been
utilized in an upright position, and occur at greater or less intervals
along the thin walls of dry masonry. An example of this use was seen in
a garden wall on the west side of Walpi, where the stones had been set
on end in the yielding surface of a sandy slope among the foothills.
A similar arrangement, occurring close to the houses at Ojo Caliente,
is illustrated in Pl. XCII. Large, upright slabs of stone have been used
by the pueblo builders in many ways, sometimes incorporated into the
architecture of the houses, and again in detached positions at some
distance from the villages. Pls. XCIII and XCIV, drawn from the
photographs of Mr. W. H. Jackson, afford illustrations of this usage in
the ancient ruins of Montezuma Canyon. In the first of these cases the
stones were utilized, apparently, in house masonry. Among the ruins in
the valley of the San Juan and its tributaries, as described by Messrs.
W. H. Holmes and W. H. Jackson, varied arrangements of upright slabs of
stone are of frequent occurrence. The rows of stones are sometimes
arranged in squares, sometimes in circles, and occasionally are
incorporated into the walls of ordinary masonry, as in the example
illustrated. Isolated slabs are also met with among the ruins. At
K'iakima, at a point near the margin of the ruin, occurs a series of
very large, upright slabs, which occupy the positions of headstones to a
number of small inclosures, thought to be mortuary, outlined upon the
ground. These have been already described in connection with the ground
plan of this village.

The employment of upright slabs of stone to mark graves probably
prevailed to some extent in ancient practice, but other uses